diff options
Diffstat (limited to 'app-containers/lxc/files/lxc.initd.9')
| -rw-r--r-- | app-containers/lxc/files/lxc.initd.9 | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/app-containers/lxc/files/lxc.initd.9 b/app-containers/lxc/files/lxc.initd.9 new file mode 100644 index 000000000000..4958fbcbbc7b --- /dev/null +++ b/app-containers/lxc/files/lxc.initd.9 @@ -0,0 +1,132 @@ +#!/sbin/openrc-run +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +CONTAINER=${SVCNAME#*.} + +LXC_PATH=`lxc-config lxc.lxcpath` + +lxc_get_configfile() { + if [ -f "${LXC_PATH}/${CONTAINER}.conf" ]; then + echo "${LXC_PATH}/${CONTAINER}.conf" + elif [ -f "${LXC_PATH}/${CONTAINER}/config" ]; then + echo "${LXC_PATH}/${CONTAINER}/config" + else + eerror "Unable to find a suitable configuration file." + eerror "If you set up the container in a non-standard" + eerror "location, please set the CONFIGFILE variable." + return 1 + fi +} + +[ $CONTAINER != $SVCNAME ] && CONFIGFILE=${CONFIGFILE:-$(lxc_get_configfile)} + +lxc_get_var() { + awk 'BEGIN { FS="[ \t]*=[ \t]*" } $1 == "'$1'" { print $2; exit }' ${CONFIGFILE} +} + +lxc_get_net_link_type() { + # gentoo bugfix 909640, drop commented lines before awk + grep -v '^#' ${CONFIGFILE} | awk 'BEGIN { FS="[ \t]*=[ \t]*"; _link=""; _type="" } + $1 == "lxc.network.type" {_type=$2;} + $1 == "lxc.network.link" {_link=$2;} + match($1, /lxc\.net\.[[:digit:]]+\.type/) {_type=$2;} + match($1, /lxc\.net\.[[:digit:]]+\.link/) {_link=$2;} + {if(_link != "" && _type != ""){ + printf("%s:%s\n", _link, _type ); + _link=""; _type=""; + }; }' +} + +checkconfig() { + if [ ${CONTAINER} = ${SVCNAME} ]; then + eerror "You have to create an init script for each container:" + eerror " ln -s lxc /etc/init.d/lxc.container" + return 1 + fi + + # no need to output anything, the function takes care of that. + [ -z "${CONFIGFILE}" ] && return 1 + + utsname=$(lxc_get_var lxc.uts.name) + if [ -z "$utsname" ] ; then + utsname=$(lxc_get_var lxc.utsname) + fi + + if [ "${CONTAINER}" != "${utsname}" ]; then + eerror "You should use the same name for the service and the" + eerror "container. Right now the container is called ${utsname}" + return 1 + fi +} + +depend() { + # be quiet, since we have to run depend() also for the + # non-muxed init script, unfortunately. + checkconfig 2>/dev/null || return 0 + + config ${CONFIGFILE} + need localmount + use lxcfs + + local _x _if + for _x in $(lxc_get_net_link_type); do + _if=${_x%:*} + case "${_x##*:}" in + # when the network type is set to phys, we can make use of a + # network service (for instance to set it up before we disable + # the net_admin capability), but we might also not set it up + # at all on the host and leave the net_admin capable service + # to take care of it. + phys) use net.${_if} ;; + *) need net.${_if} ;; + esac + done +} + +start() { + checkconfig || return 1 + rm -f /var/log/lxc/${CONTAINER}.log + + rootpath=$(lxc_get_var lxc.rootfs) + + # Check the format of our init and the chroot's init, to see + # if we have to use linux32 or linux64; always use setarch + # when required, as that makes it easier to deal with + # x32-based containers. + case $(scanelf -BF '%a#f' ${rootpath}/sbin/init) in + EM_X86_64) setarch=linux64;; + EM_386) setarch=linux32;; + esac + + ebegin "Starting LXC container ${CONTAINER}" + env -i ${setarch} $(which lxc-start) -n ${CONTAINER} -f ${CONFIGFILE} -d -o /var/log/lxc/${CONTAINER}.log + sleep 1 + + # lxc-start -d will _always_ report a correct startup, even if it + # failed, so rather than trust that, check that the cgroup exists. + # fix for LXC 3.1 + + STATE="$(lxc-info -s -H ${CONTAINER})" + [ "$STATE" = "RUNNING" ] + + eend $? +} + +stop() { + checkconfig || return 1 + + STATE="$(lxc-info -s -H ${CONTAINER})" + + if ! [ "$STATE" = "RUNNING" ]; then + ewarn "${CONTAINER} doesn't seem to be started." + return 0 + fi + + # 30s should be enough to shut everything down + # lxc-stop will return back anyway as soon as successful shutdown + # after 30s, lxc-stop sends SIGKILL (dirty shotdown) + ebegin "Stopping LXC container ${CONTAINER}" + lxc-stop -t 30 -n ${CONTAINER} + eend $? +} |